Servo motors are widely used in life, such as machine tools, printing equipment we are familiar with, and robots that we know but do not often touch, and can find its shadow in projects and other projects.
Servo motor speed
The maximum speed of the servo motor reaches 2000rpm, and it takes only 3 milliseconds to accelerate from 0rpm to 2000rpm.The servo motor is a closed -loop -controlled angle input motor part, because the servo motor not only accepts the pulse signal, but also the corresponding feedback pulse signal and the signal sent by the signal will be a closed circle.The servo motor does not go to the same angle every step as a step motor, but follows the corresponding angle according to the goal. This is equivalent to narrowing each step of the step motor in the servo motor. ThereforeStep motor is more accurate.
Servo motor brand
1. Japanese servo motor brand -Panasonic, Mitsubishi, Fuji, etc. 1. Panasonic motor Panasonic servo motor has a very high sales in the Chinese market.It is quite cheap. Some series are even lower than the Taiwan servo motor. The quality is better in the short term. However, according to experienced user evaluation, pulse light damage may occur one year later, and then it can only operate unidirectional.2. Mitsubishi Motor Mitsubishi Motor is mainly divided into two series, one of which is low in price and relatively high cost performance; and the other is solid quality, but because Mitsubishi motor is generally high, sales are no more than Panasonic.
Servo motor price
The servo motor contains domestic and imported ones.The price is different.Like Anchuan 11kW: The import price is 256, and the domestic production is 178.You can refer to the price about the rest.
Servo motor control
At present, servo motor control methods mainly include position control methods, speed control methods, and torque control methods.The position control method is generally determined by the pulse frequency of the external input, which means that the angle of rotation is determined by the number of pulses.The position control method has extremely strict requirements for speed and position. It is more common in positioning devices. It is usually used in CNC machine tools and printing machinery.The speed control method generally controls the speed of rotation speed through the input or pulse frequency of analog quantity.Under normal circumstances, the speed can also be used in the outer ring PID control of the upper -position control device, but the position signal of the motor must be feeded to the upper control device for operation.The torque control method generally refers to setting the motor axis to output the external output torque by input an external analog quantity or the assignment value of the direct address, which means that the user can change the simulation or assign value to change the set torque size.
Servo motor selection
DC servo motor stator, servo motor winding, speed measurement motor winding, speed motor steeringtor, motor shaft, rotor intimate, etc. are the main constituent accessories of DC servo motors.It is mainly used in ordinary industries and civilian occasions. The cost is high, the startup torque is large, the speed regulation range is wide, it is easier to control, and users need to be maintained frequently, but it is not convenient to maintain.According to the size of the motor, it can be divided into large inertia DC motors, medium inertia DC motors, and small inertia DC motors, and low inertia DC motors.The structure of the stator in the AC servo motor communication servo motor is very similar to the single -phase asynchronous motor of the capacitor division. Because there are two positions with 90 ° on the stator, the wounds of 90 ° are the inspirational winding RF and the control winding L.For two servo motors.Compared with DC servo motors, the AC servo motor has no brush and steeringrs. It is more stable and reliable to work. The cost of maintenance and maintenance is lower. At the same time, the service motor has less inertia and is more easy to improve the system.
Servo motor repair
As soon as the servo motor maintenance scheme is the sound of "buzzing" sound after the servo motor is powered on, the external force cannot rotate it. Most of them are caused by the fixed rotor iron heart, severe wear of the bearings, and rotor cage.At this time, you can check them one by one, such as repairing a fixed rotor iron heart, replacing new bearing or checking rotor.The servo motor maintenance scheme Second, when the servo motor is powered on, the motor also makes a "buzz" sound, but the motor cannot be started. Most of them are due to the disconnection or short circuit in the winding of the electric motor.At this time, the user can check the power supply and reply to the power supply again. Secondly, use a multimeter to test the place where the line is disconnected one by one, or perform local repair or replace the winding.
What is a servo motor
Servomotor refers to the engine that controls the operating mechanical component in the servo system, which is a subsidized motor indirect transmission device.The servo motor can control the control speed and the position accuracy is very accurate. The voltage signal can be converted into torque and speed to drive the object.
Principles of servo motor working principles
Before understanding the working principle of the servo motor, lets first understand the servo system.The so -called servo system is also called the follow -up system.Specializing, it is used to follow or reproduce a control feedback system, which is mainly used for wireless tracking control, automatic lathe, etc. At the same time, it is also used in national defense military and other projects.The servo system mainly relies on pulse to locate. When the servo motor receives a pulse, it will rotate a pulse angle to achieve positioning of the position.Similarly, the servo motor also has a pulse function. When the servo motor rotates a angle, it will emit the corresponding pulse, which echoes the pulse received by the former.In this way, the system can accurately record how many pulses and how many pulses are received, so as to control the rotation of the motor more accurately, and then achieve more accurate positioning, minimum can reach 0.001 mm.

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